/* Acoustic.gr - P. Karampatzakis
   Colours and fonts are defined once here. */
:root {
  --paper: #F2F4F3;
  --ink: #1F2B33;
  --muted: #5F6E76;
  --rule: #D3DAD9;
  --tint: #E3E8E7;
  --accent: #2A4BD7;
  --serif: Arial, Helvetica, sans-serif;
  --sans: Arial, Helvetica, sans-serif;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #12181C;
    --ink: #E4EAE8;
    --muted: #98A5AB;
    --rule: #2A343A;
    --tint: #1B242A;
    --accent: #93A9FF;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 1.0625rem/1.65 var(--sans);
}
img { display: block; max-width: 100%; height: auto; }
a {
  color: inherit;
  text-decoration-color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: .22em;
}
a:hover { color: var(--accent); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.skip { position: absolute; left: -999px; top: 0; }
.skip:focus { left: 1rem; top: 1rem; z-index: 10; padding: .5rem .8rem; background: var(--paper); }

.wrap { max-width: 70rem; margin: 0 auto; padding: 0 clamp(1.25rem, 4vw, 2.5rem); }

/* header */
header.site { padding: 1.4rem 0 1.2rem; border-bottom: 1px solid var(--rule); }
header.site .wrap {
  display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline;
  gap: .6rem 2rem;
}
.brand {
  font: 700 1.25rem/1.2 var(--serif);
  letter-spacing: -.01em;
  text-decoration: none;
}
.brand:hover { color: var(--ink); }
.brand span { margin-left: .5rem; font-weight: 400; font-size: 1rem; color: var(--muted); }
nav ul { display: flex; flex-wrap: wrap; gap: .25rem 1.75rem; margin: 0; padding: 0; list-style: none; }
nav a { display: inline-block; padding: .2rem 0; text-decoration: none; border-bottom: 1px solid transparent; }
nav a:hover { color: var(--ink); border-bottom-color: var(--muted); }
nav a[aria-current="page"] { border-bottom-color: var(--accent); }

/* headings */
h1 {
  margin: 0;
  font: 400 clamp(2.25rem, 6vw, 4.25rem)/1.08 var(--serif);
  letter-spacing: -.03em;
  max-width: 20ch;
}
.lede { margin: 1.4rem 0 0; max-width: 40rem; font-size: 1.2rem; color: var(--muted); }

.hero { padding-top: clamp(3rem, 9vw, 6.5rem); }
.page-head { padding: clamp(2.5rem, 7vw, 4.5rem) 0 clamp(2rem, 4vw, 3rem); }
.page-head h1 { font-size: clamp(2rem, 4.5vw, 3rem); }

/* the one memorable element: a room impulse response, dying away */
.decay {
  display: block;
  width: 100%;
  height: clamp(4.5rem, 12vw, 8rem);
  margin: clamp(2.5rem, 6vw, 4rem) 0 clamp(2.5rem, 6vw, 4rem);
  color: var(--accent);
}
.decay path { fill: none; stroke: currentColor; stroke-width: 1.5; vector-effect: non-scaling-stroke; }
@media (prefers-reduced-motion: no-preference) {
  .decay { animation: reveal 2.6s cubic-bezier(.2, .6, .2, 1) both; }
}
@keyframes reveal { from { clip-path: inset(0 100% 0 0); } to { clip-path: inset(0 0 0 0); } }

/* label | content blocks */
.block {
  display: grid;
  grid-template-columns: 11rem minmax(0, 1fr);
  gap: 1rem 2.5rem;
  padding: 2.5rem 0;
  border-top: 1px solid var(--rule);
}
.block > h2 { margin: 0; font: 400 1.25rem/1.3 var(--serif); }
@media (max-width: 46rem) { .block { grid-template-columns: 1fr; } }

.prose p { max-width: 62ch; margin: 0 0 1em; }
.prose p:last-child { margin-bottom: 0; }
.prose .pull { max-width: 28ch; margin-bottom: 1.25rem; font-size: clamp(1.4rem, 3vw, 1.75rem); line-height: 1.3; letter-spacing: -.015em; }

.about-body { display: grid; grid-template-columns: minmax(0, 1fr) 11rem; gap: 2rem 3rem; align-items: start; }
.portrait { margin: 0; }
@media (max-width: 46rem) {
  .about-body { grid-template-columns: 1fr; }
  .portrait { order: -1; width: 8rem; }
}

.lead-list { margin: 0 0 1.25rem; padding: 0; list-style: none; }
.lead-list li {
  display: grid; grid-template-columns: 14rem minmax(0, 1fr); gap: .25rem 1.5rem;
  padding: .8rem 0; border-top: 1px solid var(--rule);
}
.lead-list li:first-child { padding-top: 0; border-top: 0; }
.lead-list strong { font-weight: 700; }
@media (max-width: 46rem) { .lead-list li { grid-template-columns: 1fr; } }

.plain {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 2rem;
  margin: 0; padding: 0; list-style: none;
}
.plain li { padding: .6rem 0; border-top: 1px solid var(--rule); }
@media (max-width: 34rem) { .plain { grid-template-columns: 1fr; } }

.entries { margin: 0; padding: 0; list-style: none; }
.entries li {
  display: grid; grid-template-columns: 5.5rem minmax(0, 1fr); gap: .25rem 1.5rem;
  padding: .8rem 0; border-top: 1px solid var(--rule);
}
.entries li:first-child { padding-top: 0; border-top: 0; }
.entries strong { font-weight: 700; }
.when, .yr { color: var(--muted); font-variant-numeric: tabular-nums; }

/* rows: projects and research */
.rows { margin: 0; padding: 0; list-style: none; }
.row {
  display: grid;
  grid-template-columns: 8.5rem minmax(0, 1fr) auto;
  gap: .5rem 2rem;
  padding: 1.75rem 0;
  border-top: 1px solid var(--rule);
}
.row .yr { padding-top: .4rem; font-size: .9375rem; }
.row h2 { margin: 0 0 .3rem; font: 400 1.5rem/1.25 var(--serif); letter-spacing: -.015em; }
.where { margin: 0 0 .5rem; font-size: .9375rem; color: var(--muted); }
.scope { max-width: 56ch; margin: 0; }
.shot { width: 17rem; aspect-ratio: 8 / 5; margin: 0; background: var(--tint); overflow: hidden; }
.shot img { width: 100%; height: 100%; object-fit: cover; }

.row.slim { grid-template-columns: 5.5rem minmax(0, 1fr); padding: 1rem 0; }
.row.slim .yr { padding-top: .15rem; }
.block .rows .row:first-child { padding-top: 0; border-top: 0; }
.t { max-width: 60ch; margin: 0; font: 400 1.125rem/1.4 var(--serif); }
.meta { max-width: 60ch; margin: .2rem 0 0; font-size: .9375rem; color: var(--muted); }
.note { max-width: 60ch; margin: 0 0 1.5rem; color: var(--muted); }

@media (max-width: 46rem) {
  .row, .row.slim { grid-template-columns: 1fr; gap: .25rem; }
  .row .yr { padding-top: 0; }
  .shot { width: 100%; margin-top: .75rem; }
}

/* contact */
.contact { display: grid; grid-template-columns: 8rem minmax(0, 1fr); margin: 0; }
.contact dt, .contact dd { margin: 0; padding: 1.1rem 0; border-top: 1px solid var(--rule); }
.contact dt { color: var(--muted); padding-top: 1.45rem; font-size: .9375rem; }
.contact dd { font: 400 clamp(1.25rem, 3vw, 1.6rem)/1.3 var(--serif); }
.facts { grid-template-columns: 15rem minmax(0, 1fr); }
.facts dt { padding: .8rem 1rem .8rem 0; font-size: .9375rem; }
.facts dd { padding: .8rem 0; font: 400 1rem/1.5 var(--sans); font-variant-numeric: tabular-nums; }
.facts dt:first-of-type, .facts dt:first-of-type + dd { border-top: 0; padding-top: 0; }
.block .contact.facts { margin: 0; }
@media (max-width: 46rem) {
  .facts { grid-template-columns: 1fr; }
  .facts dt { padding: .9rem 0 .1rem; }
  .facts dd { padding: 0 0 .9rem; border-top: 0; }
  .facts dt:first-of-type { padding-top: 0; }
}

/* footer */
footer.site { margin-top: 5rem; padding: 2rem 0 3rem; border-top: 1px solid var(--rule); color: var(--muted); font-size: .9375rem; }
footer.site .wrap { display: flex; flex-wrap: wrap; gap: .25rem 2.5rem; }
footer.site p { margin: 0; }